Straw-stacker



(No Model.)

I. ADAMS. STRAW STAOKER.

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UNITED STATES ISAAC ADAMS, OF WEST LEROY, ASSIGNOR OF ONE-HALF TO THE ADVANCE PATENT OFFICE.

THRESHER COMPANY, OF BATTLE CREEK, MICHIGAN.

ST RAW-STACKER.

SPECIFICATION forming part of Letters Patent No. 427,945, dated May 13, 1890.

Application filed January 30, 1890. Serial No. 338,566- (No model.) V

T0 on whom it may concern.-

Be it known that I, ISAAC ADAMS, a citizen of the United States, residing at WVest Leroy, in the county of Calhoun and State of Michigan, have invented new and useful Improvements in Machines for Stacking Straw, of which the following is a specification.

My invention relates to straw-stacking machines of the class usually employed in connection with thrashing machinery.

It is my purpose to provide a construction and organization of parts whereby the sagging or bending of the stacker or elevator frame shall be prevented and the side bars of said frame supported in a straight orv nearly straight line and enabled to sustain the load placed upon them.

It is my further purpose to combine with the elevatorframe of the stacker simple means whereby the elevator-frame may be lowered and loaded upon the separator or behind the same without the necessity of winding upon the Windlass more than a very limited portion of the rope employed, thereby avoiding a considerable expenditure of time, as well as some labor.

The invention consists in the several novel features of construction and new combinations of parts, hereinafter fully set forth, and then definitely pointed out in the claims following this specification.

To enable others skilled in the art to practice my said invention, I will describe the same in detail, reference being made to the accom- J panying drawings, in which Figure 1 is a side elevation of a portion of a separator, showing my invention combined therewith. Fig. 2 is a detail elevation of a part of the upper or outer section of the stacker, showing the cam-pawl and its relation to the pulley.

In the said drawings, the reference-numeral 1 indicates the separator, which is of the ordinary or any preferred construction, and 2 denotes the elevator-frame or stacker, which is composed of sections jointed together in the well-known manner. I have shown the stacker in the present case as composed of three of these sections; but it will be understood that this number may be varied to suit the circumstances of each case. The lower section 3 of this frame is hinged or pivotally mounted on a lower rearward extension 4 on the separator, each side bar of the frame having the same construction and mounting as its parallel bar. To the extremities of the sections 3 are jointed the middle sections 5, their union being effected by means of the lock-hinges 6, used in mechanism of this type, and to the ends of the middle sections are joined in a similar manner the third and last section 7, which is shorter than either of the others.

The elevating and sustaining cable or rope 8 is attached by one end to an eye or staple 9 upon the rear of the separator at its top, there being a similarly-attached cable or rope upon the opposite side. From the point of attachment these cables or ropes are carried underneath pulleys 10, journaled upon the outer surfaces of the sections 5 at a short distance from their lower ends. From these pulleys 10 the ropes pass to and around pulleys 12, journaled upon the outer faces of the section 7 not far from the middle portion of said section. From these pulleys 12 both ropes pass directly to the barrel or drum of the Windlass 13,which is journaled in bracket-supports 14c, rising from the sides of the separator in front of the points of attachment 9 of the ropes. The Windlass-shaft is provided with a ratchet 15, with which a pawl 16, pivoted on an ex tension of the frame, engages. The pulleys 12 are journaled upon studs mounted in plates 17 011 the side-bar sections 7, said plates having shields 18, which partly protect the ropes. Upon the lower or inner ends of the plates 1'7 are pivoted cam-pawls 19, having the ends lying next the pulleys 12 slightly convex and grooved'to adapt them to engage the ropes in the manner shown in Fig. 2, whereby a bight may be made upon the ropes to lock them and the pulleys at any desired point. A friction-ro1l 20 is mounted upon theextreme rear portion of the separator to receive those portions of the ropes which are traveling toward or from the Windlass in lowering or raising the stacker. At or near the hinges 6, between the sections 3 and 5, are placed outwardly-proj ecting knobs or studs 21, and similar devices 22 are mounted at the same points on the hinges between the sections 5 and 7, for a purpose presently to be shown.

ICO

In loading the stacker or elevator-frame it is lowered to the ground, as shown in dotted lines in Fig. 1. The ropes are then drawn taut from the Windlass, carried over the roll 20, and under the knobs or studs 21. They are then carried to and over the pulleys 12 and over the cam-pawls 19, thereby fastening said ropes and enabling the Windlass to effect a strain upon the ropes at once without requiring it to be operated for a time to take up the slack of the ropes. As the Windlass is operated by its cranks, the stacker is raised and the cable or rope moves on the roll 20, car ried by the separator. The ropes in raising the stacker pass directly beneath the knobs or studs 22 and support the frame at this point.

The stacker is shown by full lines in position for stacking purposes, and other positions are indicated by dotted or broken lines. I have exhibited by dotted lines one folded position of the stacker, and in this position the lower section rests against the rear of the separator, the middle section is folded upon the top of the latter, and the remaining section 7 is folded on the middle section.

I have neither shown nor described the mechanism of the stacker or separator aside from those parts which relate immediately to my invention, which is applicable to any organization of stacking mechanism in which the elevator-frame is composed of sections jointed one to another.

W hat I claim is 1. A straw-stacker or elevator-frame consisting of two or more jointed sections provided with pulleys, the elevating and sustaining cables supported by the pulleys, and campawls pivoted near the pulleys to lock the cables when loading and unloading the elevator-fra'l'ne, substantially as described.

2. In a straw-stacker, the combination, with the elevator-frame consisting of sections jointed one to another, of pulleys journaled upon the lower portions of the second sections, pulleys journaled upon the outer section of the frame, ropes fastened at one end to the separator and passing over said pulleys, and

awindlass upon which the other ends of said ropes are wound, substantially as described.

In a straw-stacker, the co1nbination,with an elevator-frame composed of hinged or jointed sections and having the lower section pivotally connected to the rear of a separator, of a windlass journaled on said separator, and cables attached at one end to the separator passing under pulleys journaled on the side bars of the middle section, then over pul leys upon the outer section of the elevatorframe, and then to the windlass, the elevatorframe being provided with eam-pawls pivoted near the outer pulleys and with knobs or studs projecting outwardly at or near the joints connecting the sections, substantially as described.

4. In a straw-stacker, the combination, with an elevator-frame composed of sections jointed one to another, of pulleys journaled on the outer faces of the side bars of the frame shortly above the first joint, pulleys journaled centrally upon the outer section of the elevator-frame, cam-pawls having convex grooved edges and pivoted near the latter pulleys, ropes engaging said pulleys and pawls, and a Windlass operating the ropes, substantially as described.

5. Ina straw-stacker, the combination, with an elevator-frame consisting of the three sections 3, 5, and 7, connected together, the first section being pivoted upon the rear of a separater, of pulleys 10 upon the lower ends of the sections 5, pulleys 12 upon the outer section 7, cam-pawls 19, pivoted near said pulleys, ropes attached at one end to eyes 9 on the separator, and a Windlass 13, upon which the outer ends of said ropes wind, the elevatorframe being provided with knobs or studs 21 and 22 at or near the joints between the sections, substantially as described.

In testimony whereof I have aflixed my signature in presence of two witnesses.

ISAAC ADAMS. Vitnesses:

LESLIE E. CLAWSON, .3. T. SKINNER. 

